controllers/grid/languages/form/InstallLanguageForm.inc.php

<?php

// Import the base Form.
import('lib.pkp.classes.form.Form');

class InstallLanguageForm extends Form {

   function InstallLanguageForm($wizardMode = false) {
      parent::Form('controllers/grid/languages/installLanguageForm.tpl');
   }

   //
   // Overridden methods from Form.
   //
   function initData(&$request) {
      parent::initData($request);

      $site =& $request->getSite();
      $this->setData('installedLocales', $site->getInstalledLocales());
   }

   function fetch(&$request) {
      $site =& $request->getSite();
      $allLocales = AppLocale::getAllLocales();
      $installedLocales = $this->getData('installedLocales');
      $notInstalledLocales = array_diff(array_keys($allLocales), $installedLocales);

      $templateMgr =& TemplateManager::getManager();
      $templateMgr->assign('allLocales', $allLocales);
      $templateMgr->assign('notInstalledLocales', $notInstalledLocales);

      import('classes.i18n.LanguageAction');
      $languageAction = new LanguageAction();
      if ($languageAction->isDownloadAvailable()) {
         $downloadableLocales = $languageAction->getDownloadableLocales();
         $downloadableLocaleLinks = array();

         import('lib.pkp.classes.linkAction.request.AjaxAction');
         $router =& $request->getRouter();
         foreach ($downloadableLocales as $locale => $name) {
            $downloadableLocaleLinks[$locale] = new LinkAction($locale,
               new AjaxAction($router->url($request, null, null, 'downloadLocale', array('locale' => $locale))),
               $name . ' (' . $locale . ')');
         }

         $templateMgr->assign('downloadAvailable', true);
         $templateMgr->assign('downloadableLocaleLinks', $downloadableLocaleLinks);
      }

      return parent::fetch(&$request);
   }

   function readInputData(&$request) {
      parent::readInputData($request);

      $localesToInstall = $request->getUserVar('localesToInstall');
      $this->setData('localesToInstall', $localesToInstall);
   }

   function execute(&$request) {
      $site =& $request->getSite();
      $localesToInstall = $this->getData('localesToInstall');

      if (isset($localesToInstall) && is_array($localesToInstall)) {
         $installedLocales = $site->getInstalledLocales();
         $supportedLocales = $site->getSupportedLocales();

         foreach ($localesToInstall as $locale) {
            if (AppLocale::isLocaleValid($locale) && !in_array($locale, $installedLocales)) {
               array_push($installedLocales, $locale);
               // Activate/support by default.
               if (!in_array($locale, $supportedLocales)) array_push($supportedLocales, $locale);
               AppLocale::installLocale($locale);
            }
         }

         $site->setInstalledLocales($installedLocales);
         $site->setSupportedLocales($supportedLocales);
         $siteDao =& DAORegistry::getDAO('SiteDAO');
         $siteDao->updateObject($site);
      }
   }
}

?>